[NeedMoreTime4Me]

I think this is just a propagation of the issues larger organizations may generally have with dependencies. You don’t want your applications be dependent on the update cycle of other organizations/individuals. What if the bug fix does not get merged into the master fast enough? Do you fork? When do you recombine again?

But otherwise I agree, sharing code and making it better for everyone as well as delegating complicated parts of the application to others are well practices.